Question 1 The purpose of the sales director’s study is to determine whether attending the training program caused an increase in sales for representatives from the two regions. So the sales director collected sales data from both groups (those receiving training and those receiving no training) for three months after the one-month program and compared the number of orders secured by those who attended the training program with the number of orders secured by those who didn’t attend.

Part A
Question
Select the correct answer from each drop-down menu.

The sales director conducted
an
because a treatment
was
applied to the sales representatives.

This is the best statistical study for this situation because the sales director is trying to establish
correlation

Part B
Suppose there are 1,000 total sales representatives in the Midwest and Northeast regions, with 500 sales reps in each region. Describe the best way for the sales director to include 200 sales representatives, with an equal number from each region and an equal number in each group, while yielding valid conclusions in the study.

Question 2
For three months after the training program, the sales director collected the sales data for the 200 sales representatives from the Midwest and Northeast regions. The director then broke down the number of sales orders for the representatives according to whether they received training or not. This data is shown in the table.

Three Months’ Sales Orders​
Training​​ No Training​
Midwest 234 196
Northeast 252 178
Question
Use the data shown in the table to complete each statement.

Select the correct answer from each drop-down menu.

For the Midwest region, the average number of sales orders per representative for the group that had training is
more than the average number of sales per representative for the group that had no training.

For the Northeast region, the average number of sales orders per representative for the group that had training is
more than the average number of sales per representative for the group that had no training.

The data from the sales director’s study indicates that the one-month training program
sales.